Mercedes Benz M272 Engine Parts Diagram !link!

[ Left Intake Cam ] [ Right Intake Cam ] [ Left Exhaust Cam ] [ Right Exhaust Cam ] \ / \ / \-[ Balance Shaft ] | [ Timing Chain Tensioner ] | [ Crankshaft ] Key Diagram Components:

Houses a dual overhead cam (DOHC) setup with four valves per cylinder. Variable Valve Timing:

These flaps change the airflow path based on engine load. In many diagrams, you will see the "triangular" plastic lever on the front of the manifold—this is a frequent failure point where the plastic snaps, requiring a metal replacement kit.

Belt-driven unit mounted to the front of the block.

The foundation of the M272 is a 90-degree aluminum engine block featuring silitec (silicon-aluminum) cylinder liners. Because a 90-degree V6 configuration is inherently unbalanced, Mercedes-Benz integrated a crucial component directly into the crankcase valley. Mercedes Benz M272 Engine Parts Diagram

Located deep within the cylinder head, requiring a thin-walled socket for removal.

Total of four camshafts controlling the valve cycles.

Includes the updated balance shaft gear, oil pump, timing chain, chain guides, tensioner, and necessary gaskets.

Driven by a dedicated chain from the crankshaft to circulate oil. [ Left Intake Cam ] [ Right Intake

A threaded regulator on the side of the cylinder head that uses engine oil pressure to keep the timing chain tight.

Beyond the balance shaft, there are a few other easily serviceable components detailed in the M272 parts diagram that commonly require replacement over a 100,000+ mile lifespan: 1. Intake Manifold Actuator / Tumble Flaps

A comprehensive M272 diagram typically highlights several advanced mechanical and electronic systems:

[ Valve Covers ] │ [ Camshaft Adjusters / Gears ] ◄─── (Driven by Timing Chain) │ [ Intake & Exhaust Cams ] │ [ Hydraulic Lifters / Valves ] Key Diagram Components: Belt-driven unit mounted to the front of the block

Mounted on the front of the engine. It houses the oil filter element and integrates with the oil cooler. Common Failure: The gaskets behind this housing fail frequently, leaking oil down the front of the engine block.

Hydraulic tensioner that maintains proper chain rigidity.

A heavy-duty duplex chain synchronizing the crankshaft, balance shaft, and camshafts.